From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 104DB1DE3C8 for ; Sun, 3 Aug 2025 12:09:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754222944; cv=none; b=LoAZFBcFBkUgqGMb9+tZT1ZxMdqcz57ugrMjPuHOHlROCojv9sXUFNetWQzRR2Kggon7hpJhKSmS4s4wOvR4py0rz/2hosGj5Bt1aR0+HgKidu7g1ysQb+N4A7j9ZAa3WrI4dmlWQO/SU+Au1Sak/UATsLRIdErco/iSvRVK1Us= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754222944; c=relaxed/simple; bh=+BxCQVXtTe+xoz4eJ9sHAveL3+qt5++cybtEn1AaG/w=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=l0UJweqXPXCuFM/k4G2gkuyOWVXchBElNuGT5JCm4FjiiQAmBoWa+08sRv3X8OB1aMMtUn2/NyWFkaF92Yy7PW/NzSSkN5j+L9SGGD7MvAiP8Bm6tugsZO7bLj+Lic0wFwvsBc058g1MxzqcTv02pNTrwy0pCuGkp8M/RgtmBuk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.200 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f200.google.com with SMTP id e9e14a558f8ab-3e3fcdbeb23so70022805ab.3 for ; Sun, 03 Aug 2025 05:09:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1754222942; x=1754827742; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=v5+xCIY68eQod8HShjZie1OqXUWvIMyxZ5G/valhey4=; b=NVgl79LVYqo84t8COzYFtLVrynEV2CwqGn7VsmcoCxOEGV6MVCzzpiHmTo3uHjAOmR qCsYi8KUMWe88Jiu2eZ8W+aUeKAlrt/0kZTUA6n82IRwlpzb9BQb3U1X5m74GojXUcP/ GQOi48H5ro7hMKXubVQbdIGmU2jgT458t41D2nkoBGCeXvxa1pKOeIfIrTb0VWNQZw+M iXfl191VLBW8n3EnBOSywZ/9yhks0yCMyRk5RLF2FUeE8PUVgbzC3mZksKUgoATzSQOf GBt6triHJ7w9OFIyTXev+D5bLXHdE+LcYGUlNU1ESsSUjrL1U49ZfdOiL57ftIrlLiHF DZVA== X-Forwarded-Encrypted: i=1; AJvYcCVOUIuv32zAnFaQQCLoVpTc+rtLnmVz4DpUstWTWa3VsOPyvFuAEFnkcQpx6wCX7CCzPNMU6w==@lists.linux.dev X-Gm-Message-State: AOJu0YztsdP4JW8eHMEoickEjTdgAaGx9mq7XZDFKK6+BK5Izvz7AT31 GaxnyNCTgAoO193sKLA7N7pfP/nZVvmuP94M/L3MDBjb+3qaAw7/QMmLfXCiZRYFEw/mruPX+xw KqgAcpjbYfceX36YJdLjO5C12Eaaqv0umqFdBP3+YSzhD5+9+RWDMRDyZGfk= X-Google-Smtp-Source: AGHT+IEI73yOX7LuYSonRTZStd7VDhDxkqzJkzexmNHlJCJ1YhLhqOvcqAg6Qh64hhfeEztD7/M6cYE5zqbG4QmcfI8nTwAfsPR1 Precedence: bulk X-Mailing-List: netfs@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:3303:b0:3e2:81d9:cbbc with SMTP id e9e14a558f8ab-3e41611a082mr111370915ab.2.1754222942254; Sun, 03 Aug 2025 05:09:02 -0700 (PDT) Date: Sun, 03 Aug 2025 05:09:02 -0700 In-Reply-To: <67dedd2f.050a0220.31a16b.003f.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <688f515e.050a0220.13f73d.0000.GAE@google.com> Subject: Re: [syzbot] [netfs?] INFO: task hung in netfs_unbuffered_write_iter From: syzbot To: asmadeus@codewreck.org, brauner@kernel.org, dhowells@redhat.com, eadavis@qq.com, ericvh@kernel.org, hdanton@sina.com, jack@suse.cz, jlayton@kernel.org, kprateek.nayak@amd.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux_oss@crudebyte.com, lucho@ionkov.net, mjguzik@gmail.com, netfs@lists.linux.dev, oleg@redhat.com, pc@manguebit.org, sfrench@samba.org, swapnil.sapkal@amd.com, syzkaller-bugs@googlegroups.com, v9fs@lists.linux.dev, viro@zeniv.linux.org.uk Content-Type: text/plain; charset="UTF-8" syzbot suspects this issue was fixed by commit: commit da8cf4bd458722d090a788c6e581eeb72695c62f Author: David Howells Date: Tue Jul 1 16:38:36 2025 +0000 netfs: Fix hang due to missing case in final DIO read result collection bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14cfbcf0580000 start commit: 66701750d556 Merge tag 'io_uring-6.16-20250630' of git://g.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=e29b8115bf337f53 dashboard link: https://syzkaller.appspot.com/bug?extid=62262fdc0e01d99573fc syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1400348c580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17b2048c580000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: netfs: Fix hang due to missing case in final DIO read result collection For information about bisection process see: https://goo.gl/tpsmEJ#bisection